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    <meta charset="UTF-8">
    <title>Title</title>
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<h2>IFRAME Tests</h2>

<input type="text" id="checkRecord" value="verify me"/><br/>
<input type="button" value="Click me" onclick="document.getElementById('checkRecord').value='1111'"/><br/>
<br/>

<iframe id="iframe_id" name="iframe_name" src="http://www.bilibili.com" height="300px" style="float:left;margin:20px;">
</iframe>
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